Fixed tabs introduced in r13968.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13969 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/media/css/widgets.css

@@ -199,9 +199,9 @@ p.file-upload {
 }
 
 span.clearable-file-input label {
-	color: #333;
+    color: #333;
     font-size: 11px;
-	display: inline;
+    display: inline;
     float: none;
 }